Converting eggs to flexible, all-solid supercapacitors
Converting eggs to flexible, all-solid supercapacitors
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DOI：
10.1016/j.nanoen.2019.104045
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发表时间：
2019-11
期刊：
影响因子：
17.6
通讯作者：
Yunya Zhang;Jiajun He;Zan Gao;Xiaodong Li
中科院分区：
文献类型：
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作者：
Yunya Zhang;Jiajun He;Zan Gao;Xiaodong Li
电化学储能市场的快速扩张迫切需要用于高性能电极、隔膜和电解质的低成本、可持续材料。合理的策略是从可再生生物质中提取电化学材料。然而，如何综合有效地利用生物质仍然具有挑战性。在这里，我们报告了完全由鸡蛋制成的柔性全固态超级电容器。蛋壳和蛋清/蛋黄被用来生产用于构建电极的二维石墨烯类碳，而蛋清/蛋黄则被发现是一种具有竞争性离子电导率的凝胶状固态电解质。以蛋壳膜作为优异的隔膜，组装出柔性全固态超级电容器，表现出优异的电化学性能和机械灵活性。该原型研究激发了一种全面有效地利用生物质材料构建储能装置的智能方法。蛋壳类石墨烯碳和蛋白质衍生的固态电解质应该在各个领域得到广泛的应用。
The rapid expansion of electrochemical energy storage market has imposed an impending need for low-cost, sustainable materials for high-performance electrodes, separators, and electrolytes. A rational strategy is to derive the electrochemical materials from renewable biomass. However, how to comprehensively and effectively utilize biomass remains challenging. Here, we report flexible, all-solid supercapacitors constructed with the materials entirely from eggs. Eggshells and white/yolk were used to produce 2D graphene-like carbon for constructing electrodes while egg white/yolk, on the other hand, was found to be a gel-like solid-state electrolyte with competitive ionic conductivity. With eggshell membrane as a superb separator, flexible, all-solid supercapacitors were assembled which exhibited superlative electrochemical performance and mechanical flexibility. The prototypical study inspires a smart approach to comprehensively and effectively use biomass materials for constructing energy storage devices. The eggshell-enabled graphene-like carbon and protein-derived solid-state electrolyte should find extensive applications in various fields.